Fixed point flying-about method, device and system for unmanned aerial vehicle

Abstract

The invention discloses a fixed point flying-about method and a fixed point flying-about device for an unmanned aerial vehicle. The method comprises the steps of obtaining image information of a target and flight attitude information of an aircraft; determining a yaw included angle between the aircraft and the target and an included angle between the aircraft and the target in a pitching direction according to the image information and the flight attitude information; calculating the flight speed according to the yaw included angle between the aircraft and the target and the included angle between the aircraft and the target in the pitching direction; and generating a control instruction for driving the aircraft to fly around a fixed point according to the flight speed. Automatic control on fixed point flying-about of the unmanned aerial vehicle is achieved, an unexpected situation caused by artificial misoperation is prevented, the condition that accurate fixed point flying-about cannot be achieved due to inaccurate positioning of a satellite is avoided and the accuracy is improved. In addition, the invention further provides a fixed point flying-about system for the unmanned aerial vehicle with the technical advantages.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a method, device and system for unmanned aerial vehicles to fly around a fixed point. Background technique [0002] Unmanned aircraft, referred to as "UAV", is an unmanned aircraft controlled by radio remote control equipment and its own program control device. UAVs are actually a general term for unmanned aerial vehicles. From a technical point of view, they can be divided into: unmanned helicopters, unmanned fixed-wing aircraft, unmanned multi-rotor aircraft, unmanned airships, and unmanned parawing aircraft. . Compared with manned aircraft, it has the advantages of small size, low cost, convenient use, low requirements for combat environment, and strong battlefield survivability. Since unmanned aircraft is of great significance to future air combat, all major military countries in the world are stepping up the development of unmanned aircraft. [0003] At t...

AI Technical Summary

Problems solved by technology

On the one hand, the operator manually controls the flight action of the aircraft to perform fixed-point orbital flight, because the course of the aircraft changes frequently and quickly, which can easily cause operational errors and cause the drone to crash; on the other hand, through the ground station GPS satellite navigation The cruise of the area of ​​interest is set on the map, and fine monitoring and surveillance cannot be realized due to the large map range or inaccurate positioning information

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